Massachusetts Shoreline Change Rates (1800s-2009)

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20130624
Title: Massachusetts Shoreline Change Rates (1800s-2009)
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage:
<http://www.mass.gov/eea/agencies/czm/program-areas/stormsmart-coasts/shoreline-change/>
Online_Linkage: <http://maps.massgis.state.ma.us/map_ol/czm_shorelines.php>
Online_Linkage: <http://pubs.usgs.gov/of/2012/1189/>
Larger_Work_Citation:
Citation_Information:
Originator: E.R. Thieler
Originator: Julia M. Knisel, MA CZM
Originator: Daniel W. Sampson, MA CZM
Originator: Theresa L. Smith
Publication_Date: 20130624
Title:
Massachusetts Shoreline Change Mapping and Analysis Project, 2013 Update
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1189
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <http://pubs.usgs.gov/of/2012/1189/>
Description:
Abstract:
Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. The Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) in cooperation with the Massachusetts Office of Coastal Zone Management, has compiled reliable historical shoreline data along open-facing sections of the Massachusetts coast under the Massachusetts Shoreline Change Mapping and Analysis Project 2013 Update. Two oceanfront shorelines for Massachusetts (approximately 1,370 km) were (1) delineated using 2008/09 color aerial orthoimagery, and (2) extracted from topographic LIDAR datasets (2007) obtained from NOAA's Ocean Service, Coastal Services Center. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management and USGS historical shoreline data in order to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS).
Purpose:
This dataset consists of long-term (100+ years) linear regression shoreline change rates for Massachusetts. Rates of long-term shoreline change were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. The baseline is used as a reference line for the transects cast by the DSAS software. The transects intersect each shoreline at the measurement points, which are then used to calculate a linear regression rate for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Long-term linear regression statistics were calculated with all of the historical shorelines compiled for the Massachusetts Office of Coastal Zone Management Shoreline Change Project.
Supplemental_Information:
Cross-referenced citations are applicable to the dataset as a whole. Additional citations are located within individual process steps that pertain specifically to the method described in that step.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20130624
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.124130
East_Bounding_Coordinate: -69.894858
North_Bounding_Coordinate: 42.876108
South_Bounding_Coordinate: 41.235685
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: Massachusetts Office of Coastal Zone Management
Theme_Keyword: MA CZM
Theme_Keyword: Esri polyline shapefile
Theme_Keyword: Shoreline
Theme_Keyword: Historic Shoreline
Theme_Keyword: Digital Shoreline Analysis System
Theme_Keyword: DSAS
Theme_Keyword: Baseline
Theme_Keyword: Transect
Theme_Keyword: Accretion
Theme_Keyword: Erosion
Theme_Keyword: Shoreline Change Rate
Theme_Keyword: Net Shoreline Movement
Theme:
Theme_Keyword_Thesaurus:
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0
Theme_Keyword:
EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS
Theme_Keyword: ATMOSPHERIC/OCEAN INDICATORS > SEA LEVEL RISE
Theme_Keyword:
EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SEA LEVEL RISE > EROSION
Theme_Keyword:
EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SEA LEVEL RISE > INUNDATION
Theme_Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > HUMAN SETTLEMENTS > COASTAL AREAS
Theme_Keyword:
EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > COASTAL LANDFORMS/PROCESSES
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > LANDFORMS
Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > EROSION
Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SEA LEVEL RISE
Theme_Keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SHORELINES
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus:
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0
Place_Keyword:
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS
Place_Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE
Place:
Place_Keyword_Thesaurus: U.S. Board on Geographic Names
Place_Keyword: Gulf of Maine
Place_Keyword: Massachusetts
Place_Keyword: Barnstable County
Place_Keyword: Dukes County
Place_Keyword: Essex County
Place_Keyword: Nantucket County
Place_Keyword: Norfolk County
Place_Keyword: Plymouth County
Place_Keyword: Suffolk County
Place_Keyword: Aquinnah
Place_Keyword: Barnstable
Place_Keyword: Beverly
Place_Keyword: Boston
Place_Keyword: Bourne
Place_Keyword: Brewster
Place_Keyword: Chatham
Place_Keyword: Chilmark
Place_Keyword: Cohasset
Place_Keyword: Dartmouth
Place_Keyword: Dennis
Place_Keyword: Duxbury
Place_Keyword: Eastham
Place_Keyword: Edgartown
Place_Keyword: Fairhaven
Place_Keyword: Falmouth
Place_Keyword: Gloucester
Place_Keyword: Gosnold
Place_Keyword: Harwich
Place_Keyword: Hingham
Place_Keyword: Hull
Place_Keyword: Ipswich
Place_Keyword: Kingston
Place_Keyword: Lynn
Place_Keyword: Manchester
Place_Keyword: Marblehead
Place_Keyword: Marion
Place_Keyword: Marshfield
Place_Keyword: Mashpee
Place_Keyword: Mattapoisett
Place_Keyword: Nahant
Place_Keyword: Nantucket
Place_Keyword: New Bedford
Place_Keyword: Newbury
Place_Keyword: Newburyport
Place_Keyword: Oak Bluffs
Place_Keyword: Orleans
Place_Keyword: Plymouth
Place_Keyword: Provincetown
Place_Keyword: Quincy
Place_Keyword: Revere
Place_Keyword: Rockport
Place_Keyword: Rowley
Place_Keyword: Salem
Place_Keyword: Salisbury
Place_Keyword: Sandwich
Place_Keyword: Scituate
Place_Keyword: Swampscott
Place_Keyword: Tisbury
Place_Keyword: Truro
Place_Keyword: Wareham
Place_Keyword: Wellfleet
Place_Keyword: West Tisbury
Place_Keyword: Westport
Place_Keyword: Weymouth
Place_Keyword: Winthrop
Place_Keyword: Yarmouth
Temporal:
Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 1800s-2009
Access_Constraints:
None. These data are in the public domain. GIS files are freely available for download.
Use_Constraints:
These data were automatically generated using the DSAS versions 4.2 (transects) and 4.3 (rates) software applications and should only be used for purposes explicitly stated by the originating organization. Please recognize the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management as the originators of this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Massachusetts Office of Coastal Zone Management
Contact_Address:
Address_Type: mailing and physical
Address: 251 Causeway Street, Suite 800
City: Boston
State_or_Province: MA
Postal_Code: 02114-2138
Country: USA
Contact_Voice_Telephone: 617-626-1200
Contact_Facsimile_Telephone: 617-626-1240
Contact_Electronic_Mail_Address: czm@state.ma.us
Hours_of_Service: 0900 hrs to 1600 hrs EST
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143
Cross_Reference:
Citation_Information:
Originator: J.L. Zichichi
Originator: E.A. Himelstoss, U.S. Geological Survey, Geologist
Originator: E.R. Thieler
Originator: A. Ergul
Publication_Date: 20090101
Title:
Digital Shoreline Analysis System (DSAS) version 4.0: an ArcGIS extension for calculating shoreline change
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2008-1278
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: Current version is 4.3
Online_Linkage:
<http://woodshole.er.usgs.gov/project-pages/dsas/version4/index.html>
Cross_Reference:
Citation_Information:
Originator: C.A. Schupp
Originator: J.F. O'Connell
Originator: E.R. Thieler
Publication_Date: 20010904
Title:
The Massachusetts Shoreline Change Project: 1800s to 1994 Technical Report
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The attributes of this dataset are based on the field requirements of the Digital Shoreline Analysis System and were automatically generated by the software during the generation of the transect layer or during the calculation of shoreline change rates performed by the software.
Logical_Consistency_Report: A logical consistency report was not conducted on these data.
Completeness_Report:
This dataset contains the transects automatically generated by the DSAS software application that were used to calculate long-term shoreline change rates for the region. Additional transects may have been generated but did not intersect the minimum requirement of three shorelines to calculate linear regression long-term rates.
Lineage:
Process_Step:
Process_Description:
This shoreline change dataset is based on a compilation of many shoreline change datasets released in the U.S. Geological Survey, Coastal and Marine Geology Program's Open-File Report 2012-1189 titled Massachusetts Shoreline Change Mapping and Analysis Project, 2013 Update.
Process_Date: 20130624
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Massachusetts Office of Coastal Zone Management
Contact_Address:
Address_Type: mailing and physical
Address: 251 Causeway Street, Suite 800
City: Boston
State_or_Province: MA
Postal_Code: 02114-2138
Country: USA
Contact_Voice_Telephone: 617-626-1200
Contact_Facsimile_Telephone: 617-626-1240
Contact_Electronic_Mail_Address: czm@state.ma.us
Hours_of_Service: 0900 hrs to 1600 hrs EST
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 26510
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001
Lambert_Conformal_Conic:
Standard_Parallel: 41.71666666666667
Standard_Parallel: 42.68333333333333
Longitude_of_Central_Meridian: -71.5
Latitude_of_Projection_Origin: 41.0
False_Easting: 200000.0
False_Northing: 750000.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000008155898179040834
Ordinate_Resolution: 0.000000008155898179040834
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: transectsCopy
Entity_Type_Definition:
Measurement transects and resulting regression rate calculations
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: TRANSECT_N
Attribute_Definition:
Assigned by DSAS on the basis of transect order along the baseline or baselines. This field provides the user with a method to sort transect data from the start of the baseline segment with an ID=1 and increment sequentially to the end of the final baseline segment.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Assigned by DSAS on the basis of transect order along the baseline or baselines.
Attribute:
Attribute_Label: LT_DIST_FT
Attribute_Definition:
Net Shoreline Movement - the distance in feet calculated by DSAS between the oldest and youngest shorelines for all shorelines (1844 - 2009).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: LT_RATE_FT
Attribute_Definition:
Linear Regression Rate- A linear regression rate-of-change statistic was calculated by fitting a least-squares regression line to all shoreline points for a particular transect. The best-fit regression line is placed so that the sum of the squared residuals (determined by squaring the offset distance of each data point from the regression line and adding the squared residuals together) is minimized. The linear regression rate is the slope of the best-fit line. The rate is reported in feet per year with positive values indicating accretion and negative values indicating erosion.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: LT_UNCERT
Attribute_Definition:
The standard error of the slope with confidence interval describes the uncertainty of the reported rate. The linear regression rates (LLR) are determined by a best-fit regression line for the shoreline data at each transect. The slope of this line is the reported rate of change (in feet/year). The confidence interval (LCI) is calculated by multiplying the standard error (also called the standard deviation) of the slope by the two-tailed test statistic at the user-specified 90 percent confidence. This value is often reported in conjunction with the slope to describe the confidence of the reported rate. For example: LRR = 1.2 LCI90 = 0.7 could be reported as a rate of 1.2 (+/-) 0.7 feet/year.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: ST_DIST_FT
Attribute_Definition:
Net Shoreline Movement - the distance in feet calculated by DSAS between the oldest and youngest shorelines for modern-era shorelines (1970 - 2009).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: ST_RATE_FT
Attribute_Definition:
Linear Regression Rate- A linear regression rate-of-change statistic was calculated by fitting a least-squares regression line to modern-era shoreline points for a particular transect. The best-fit regression line is placed so that the sum of the squared residuals (determined by squaring the offset distance of each data point from the regression line and adding the squared residuals together) is minimized. The linear regression rate is the slope of the best-fit line. The rate is reported in feet per year with positive values indicating accretion and negative values indicating erosion.
When only two shorelines interested a transect, a End Point Rate (EPR) statistic was used in place of LRR. EPR is a rate of change statistic calculated by DSAS that is calculated by dividing the distance of the shoreline movement by the time elapsed between the oldest and most recent shoreline. Value is reported in feet per year. Note that ST_UNCERT was not calculated for these transects; -9999 was used to signify a n/a value.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: ST_UNCERT
Attribute_Definition:
The standard error of the slope with confidence interval describes the uncertainty of the reported rate. The linear regression rates (LRR) are determined by a best-fit regression line for the shoreline data at each transect. The slope of this line is the reported rate of change (in feet/year). The confidence interval (LCI) is calculated by multiplying the standard error (also called the standard deviation) of the slope by the two-tailed test statistic at the user-specified 90 percent confidence. This value is often reported in conjunction with the slope to describe the confidence of the reported rate. For example: LRR = 1.2 LCI90 = 0.7 could be reported as a rate of 1.2 (+/-) 0.7 feet/year.
Values of -9999 indicate that a standard error was not calculated; this occurred when only two shorelines crossed a given transect.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: TOWN
Attribute_Definition:
Municipality within the transect lies. Note that some transects adjacent to the border between two towns may intersect both municipalities. No formal naming convention regarding TOWN attribution was created.
Attribute_Definition_Source: MA CZM
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Attribute:
Attribute_Label: LABEL
Attribute_Definition:
A unique code assigned to each transect. The letters represent region followed by the transect number. The value in parentheses is data from the LT_RATE_FT attribute.
Attribute_Definition_Source: MA CZM
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Massachusetts Office of Coastal Zone Management
Contact_Address:
Address_Type: mailing and physical
Address: 251 Causeway Street, Suite 800
City: Boston
State_or_Province: MA
Postal_Code: 02114-2138
Country: USA
Contact_Voice_Telephone: 617-626-1200
Contact_Facsimile_Telephone: 617-626-1240
Contact_Electronic_Mail_Address: czm@state.ma.us
Hours_of_Service: 0900 hrs to 1600 hrs EST
Resource_Description: web page
Distribution_Liability:
Although every effort has been made to ensure the accuracy of these data, errors and conditions originating from physical sources used to develop these data may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. In no event shall CZM be liable for any damages, whether general, special, incidental or consequential damages, arising out of your use of these data. Your sole remedy for damages is to stop using the data. You agree to defend, indemnify, and hold harmless CZM and its employees against any claim, loss, liability or expense, including attorneys' fees, resulting from loss of or damage to property or the injury to or death of any person arising out of the use of the data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile (.shp)
Format_Version_Number: ArcGIS 8.x, 9.x, and 10.x
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://www.mass.gov/eea/agencies/czm/program-areas/stormsmart-coasts/shoreline-change/>
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://maps.massgis.state.ma.us/map_ol/czm_shorelines.php>
Access_Instructions: web page
Fees:
GIS and coordinate files may be downloaded at no charge by following links on the Massachusetts Office of Coastal Zone Management website (<http://www.mass.gov/czm/>).
Metadata_Reference_Information:
Metadata_Date: 20130827
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Massachusetts Office of Coastal Zone Management
Contact_Address:
Address_Type: mailing and physical
Address: 251 Causeway Street, Suite 800
City: Boston
State_or_Province: MA
Postal_Code: 02114-2138
Country: USA
Contact_Voice_Telephone: 617-626-1200
Contact_Facsimile_Telephone: 617-626-1240
Contact_Electronic_Mail_Address: czm@state.ma.us
Hours_of_Service: 0900 hrs to 1600 hrs EST
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Tue Sep 03 09:25:44 2013